# def test1App(str):
#     '这是一个函数'
#     print(str)
#     return


# 不可变对象实例传
# def ChangeInt(a):
#     a = 10
#     b = 2
#     ChangeInt(b)
#     print (b)
#     # 结果是 2

# 传可变对象实例
def changeme (mylist):
    mylist.append([1,2,3,4])
    print(mylist)
    return

    mylist = [10,20,30]
    changeme(mylist)
    print(mylist)